I've finally got the agent to backup our little Linux vm but I don't understand some of the information given in the backup summary now that it's finished.
So 2 questions please.

1.
The job is set to do a whole machine backup to a network folder with 4 restore points.
The vm is using 27GB of a provisioned 44GB.
The summary says:
Data
Processed: 5GB (100%)
Read: 5GB
Transferred: 2GB (2.5x)